Results 21 to 30 of about 466 (242)

Understanding detachment of the W7-X island divertor

Nuclear Fusion, 2021
Abstract The fundamental behavior of the W7-X island divertor under detached conditions, which has been theoretically predicted with the EMC3-Eirene code, is re-examined here under the experimental conditions achieved so far and compared with the first experimental results.
W7-X Team, Feng, Y., Jakubowski, M., König, R., Krychowiak, M., Otte, M., Reimold, F., Reiter, D., Schmitz, O., Zhang, D., Beidler, C. D., Biedermann, C., Bozhenkov, S., Brunner, K. J., Dinklage, A., Drewelow, P., Effenberg, F., Endler, M., Fuchert, G., Gao, Y., Geiger, J., Hammond, K. C., Helander, P., Killer, C., Knauer, J., Kremeyer, T., Pasch, E., Rudischhauser, L., Schlisio, G., Sunn Pedersen, T., Wenzel, U., Winters, V., Gantenbein, Gerd, Huber, Martina, Illy, Stefan, Jelonnek, John, Kobarg, Thorsten, Lang, Rouven, Leonhardt, Wolfgang, Mellein, Daniel, Papenfuß, Daniel, Scherer, Theo, Thumm, Manfred, Wadle, Simone, Weggen, Jörg   +44 more
openaire   +4 more sources

Impact of drifts on divertor power exhaust in DIII-D

Nuclear Materials and Energy, 2019
Radiative divertor experiments and 2D fluid simulations show strong impact of cross-field drifts on the low field side (LFS) divertor target heat flux and volumetric radiation profiles when evolving to detached conditions in DIII-D high confinement mode (
A.E. Jaervinen, S.L. Allen, D. Eldon, M.E. Fenstermacher, M. Groth, D.N. Hill, C.J. Lasnier, A.W. Leonard, A.G. McLean, G.D. Porter, T.D. Rognlien, C.M. Samuell, H.Q. Wang, J.G. Watkins   +13 more
doaj   +1 more source

Investigation of the particle accumulation effects on the power exhaust of snowflake minus divertor on HL-2M tokamak by SOLPS-ITER

Nuclear Materials and Energy, 2020
To solve the power exhaust handling challenge, meanwhile maintaining acceptable divertor target erosion, the snowflake divertor (SFD) is proposed on HL-2M tokamak. In this work, simulations are carried out by using scrape-off layer plasma simulation code
Yanjie Zhang, Chaofeng Sang, Jiaxian Li, Guoyao Zheng, Chen Zhang, Daoyuan Liu, Dezhen Wang   +6 more
doaj   +1 more source

Argon–seeded detachment during ELM control by RMPs in KSTAR

Nuclear Fusion, 2023
In this study, we demonstrate argon-seeded discharges that exhibited a detached divertor during the full suppression and mitigation of edge-localized modes (ELMs) by an International Thermonuclear Experimental Reactor-like, three-row resonant magnetic ...
H. Shin, J. Hwang, Y. Han, G. Shin, H. Lee, K.-B. Chai, Wonho Choe   +6 more
doaj   +1 more source

Magnesium‐Based Transient Bioelectronics, Bio‐Optics and Bio‐Scaffolds

Advanced Functional Materials, EarlyView.
This paper reviews the state of the art and recent advances in magnesium‐based thin‐film, foils, and scaffolds for applications in transient bio‐optics, bioelectronics and tissue engineering. The design principles, fabrication methods, material properties, and integration strategies are discussed in detail.
Massimo Mariello, Yves Leterrier
wiley   +1 more source

Predictive modeling of a lithium vapor box divertor in NSTX-U using SOLPS-ITER

Nuclear Materials and Energy, 2021
The unmitigated heat flux in attached operation of a fusion power plant is predicted to be destructive to any solid divertor surface. Detachment, whereby the plasma pressure drops significantly before reaching the divertor target thus greatly reducing ...
E.D. Emdee, R.J. Goldston, J.D Lore, X. Zhang   +3 more
doaj   +1 more source

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

Advanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao, Dongfang Lv, Chang Liu, Changxu Wu, Yifei Liu, Caili Dai, Huazhou Li   +6 more
wiley   +1 more source

Facilitated core-edge integration through divertor nitrogen seeding in the HL-2A tokamak

Nuclear Fusion
A divertor detachment with sustainable high-performance plasmas has been achieved through divertor nitrogen seeding in the HL-2A tokamak. The closed divertor structure facilitates achieving high divertor neutral pressure due to its efficient particle ...
N. Wu, J. Cheng, K.Y. Yi, R. Wang, M.K. Han, Z.H. Huang, W.C. Wang, Y. He, L.W. Yan, H.L. Du, J.M. Gao, H.C. Ma, X.X. He, Z.C. Yang, J. Wen, K. Zhang, T. Wu, W.P. Guo, X. Yu, L. Liu, Y.G. Li, L. Nie, Z.B. Shi, D.Z. Wang, W.L. Zhong   +24 more
doaj   +1 more source

An assessment of nitrogen concentrations from spectroscopic measurements in the JET and ASDEX upgrade divertor

Nuclear Materials and Energy, 2019
The impurity concentration in the tokamak divertor plasma is a necessary input for predictive scaling of divertor detachment, however direct measurements from existing tokamaks in different divertor plasma conditions are limited. To address this, we have
S.S. Henderson, M. Bernert, S. Brezinsek, M. Carr, M. Cavedon, R. Dux, D.S. Gahle, J. Harrison, A. Kallenbach, B. Lipschultz, B. Lomanowski, A. Meigs, M. O’Mullane, F. Reimold, M.L. Reinke, S. Wiesen   +15 more
doaj   +1 more source

Plasma pressure and flows during divertor detachment [PDF]

Journal of Nuclear Materials, 1999
Abstract MHD theory applied to tokamak plasma scrape-off layer (SOL) equilibria requires Pfirsch–Schluter current, which, because the magnetic lines are open, normally closes through electrically conducting divertor or limiter components. During detached divertor operation the Pfirsch–Schluter current path to the divertor target is sometimes blocked,
M.J. Schaffer, J.A. Boedo, R.A. Moyer
openaire   +1 more source